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Agilent Technologies 4284A Technical Overview

Precision lcr meter family 20 hz to 1 mhz 75 khz to 30 mhz
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See also: Operating Manual
Agilent
4284A/4285A
Precision LCR Meter Family
20 Hz to 1 MHz
75 kHz to 30 MHz
Technical Overview
A new standard
for precise component,
semiconductor and
material measurements

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Summary of Contents for Agilent Technologies 4284A

  • Page 1 Agilent 4284A/4285A Precision LCR Meter Family 20 Hz to 1 MHz 75 kHz to 30 MHz Technical Overview A new standard for precise component, semiconductor and material measurements...

  • Page 2: Key Specifications

    Internal DC bias 1. Refer to specifications for complete accuracy. 2. Supplimental information only. 4284A with Option 4284A-002 and 42841A DC current bias 0.01 A to 20 A (with 42841A and 42842A) 0.02 A to 40 A (with 42841A x 2 ea., 42842B and 42843A)
  • Page 3 Q :0.01 to 99999.9 • High current biasing up to 40 A dc Basic accuracy |Z|, C and L:0.1% D:0.001 (Agilent 4284A) Test signal level range • Wide range of frequencies, 20 Hz to Voltage 5 mVrms to 2 Vrms...
  • Page 4 Dissipation factor rise 1 kHz and 1 MHz are the primary testing due to high ac signal frequencies for ceramic materials and capacitors. The Agilent 4284A can provide these test frequencies while maintaining an equally excellent accuracy and 6-digits of measurement resolution.
  • Page 5 The ability to output a constant test signal level permits repeatable and accurate magnetic/dielectric measurements. Both the Agilent 4284A and Agilent 4285A offer variable voltage and current test signal level control. Semiconductor testing • Extend the test cable to the DUT •...
  • Page 6 • Reduce your system development time For accurate permittivity and dissipation factor measurements The Agilent 4284A and Agilent 4285A are designed to be used of solid dielectric materials, the 16451B dielectric test fixture as elements in systems. This means GPIB, programming, is provided.

  • Page 7: Incoming Inspection

    By employing the precision LCR meter family, a wide frequency lem of having discrepancies in measurement values for different range is covered (20 Hz to 1 MHz for 4284A and 75 kHz to channels of the switching matrix by allowing channel compensa- 30 MHz for 4285A) and various test signal levels can be set tion for up to 128 channels.

  • Page 8: User Friendly Interface

    Inserting the memory card 1 now be stored and loaded using either the internal memory or the memory card The memory card system is completely electronic and is based on EEPROM. 1. Need Option 4284A/4285A-004...

  • Page 9: Power Supply

    10 A dc biasing with measurements at 30 MHz. Reduce system development time The 4284A and 4285A employ a program- ming language, which is compatible with the IEEE 488.2. Since the command names are similar to the measurement functions, the time spent for creating and debugging programs can be largely minimized.

  • Page 10: Specifications

    Measurement parameters All specifications are common |Z| (impedance), |Y| (admittance), q (phase), R (resistance), X (reactance), to the Agilent 4284A and Agilent 4285A G (conductance), B (susceptance), L (inductance), C (capacitance), Q (quality factor), unless otherwise noted. D (dissipation factor), ESR (equivalent series resistance) and Rp (parallel resistance).

  • Page 11: Measurement Range

    MHz DC bias: Standard: 0 V, 1.5 V and 2 V (Agilent 4284A only) With Option 4284A/4285A-001: 0 V to ±40 V Rear panel DC bias monitor, BNC connector Range Resolution Accuracy ±(0.000 to 4.000) V 1 mV ±(0.1% to 1 mV)

  • Page 12: Comparator Function

    Open/short/load correction data for multiple channels is stored in non-volatile memory, a maximum of 128 for the Agilent 4284A and 90 for the Agilent 4285A. Three frequencies can be corrected on the Agilent 4284A while seven frequencies can be corrected on the Agilent 4285A.

  • Page 13: Supplemental Performance Characteristics

    0 °C to 55 °C, < 95% RH at 40 °C Size 426(W) x 177(H) x 498(D) mm Weight Agilent 4284A: 15kg (33lb.) Agilent 4285A: 16kg (35.2lb.) Supplemental performance characteristics (Not guaranteed) Agilent 4284A Stability Medium integration and constant operating temperature of 23 °C ±5 °C.

  • Page 14: Measurement Accuracy

    See operation manual for additional conditions. Accuracies are relative to calibrated standards. Absolute accuracies are given as: (Agilent 4284A’s relative accuracy +calibration uncertainty of standards). Accuracy equations |Z|, |Y|, L, C, R, X, G and B accuracies are given as: ±[A + (K...
  • Page 15 Specifications q accuracy is given as: from page 14 Continued ±[(180/p) x (A /100)] (absolute degrees) where: 1. A = [A + (K ) X 100] Additional error due to temperature: Multiply the measurement accuracy by the following temperature factors. Example C and D accuracy calculation Measurement conditions: Frequency:...
  • Page 16 Specifications Table 2. K a and K b : Impedance proportional factors from page 15 Continued Notes: 1. f m is the test frequency in (Hz) 2. |Zm| is the device’s impedance 3. Vs is the test signal level in (mVrms) Specifications continued on page 17...
  • Page 17 Specifications from page 16 Continued Figure 1. Baseline accuracy facto (4284A) (For additional accuracy information refer to the impedance accuracy equation on page 14.) Notes: 1. Test signal level: 0.3 Vrms to 1 Vrms 2. Upper number, medium and long integration 3.
  • Page 18 Specifications Additional specifications (Agilent 4284A only) from page 17 Continued When measured value < 10 mΩ, |Z|, R, and X accuracy, which is described on page 14, is given as following equation. |Z|, R, and X accuracy: • ±[(Ka + Kc) x 100] (%) Where •...
  • Page 19 Specifications Table 3. Accuracy equations from page 19 Continued Specifications continued on page 20...
  • Page 20 Specifications q accuracy is given as: from page 19 Continued ±[(180/p) x (A /100)] (absolute degrees) Note: 1. A = (A + B) Additional error due to temperature: Multiply the measurement accuracy by the following temperature factors. Example L and Q accuracy calculation Measurement conditions: Frequency: 500 kHz...
  • Page 21 Specifications from page 20 Continued Figure 2. Accuracy equation (A n ) frequency and impedance range (4285A) Note: For additional accuracy information, refer to the impedance accuracy equation on page 18. The symbol in parenthesis (A n ) represents accuracy equations in Tables 3 and 4. (Measurements outside Figure 2 are permitted but accuracies are not specified.)
  • Page 22 Up to 10 Adc maximum, used only with the Agilent 4285A. Option 42842C-001 adds the SMD test fixture. The Agilent 42841A is used with either the Agilent 4284A or Component dimensions (maximum): Agilent 4285A for high dc current bias measurements.
  • Page 23 (5) Surrounding temperature: 5 °C to 45 °C (6) DUT’s dissipation factor D < 1 The entire system’s measurement error is given as 4284A accuracy + 42841A accuracy (see figure) + additional error due to temperature (see table). For more information see the operational manual of 42841A.

  • Page 24: Test Fixtures

    Test fixtures Agilent 16034G Agilent 16334A Surface mount device fixture Agilent 16034G/H test fixtures ≤ 110 MHz Frequency: Maximum DC bias voltage: ±40 V Agilent 16334A test fixture ≤ 15 MHz Frequency: Cable length: 1 meter Maximum DC bias voltage: ±40 V Agilent 16047E Agilent 16065A Agilent 16047A...
  • Page 25 Test fixtures from page 24 Continued Agilent 16451B Dielectic material test fixture Agilent 16451B dielectric test fixture ≤ 30 MHz Frequency: Function: Dielectric constant and dissipation factor Please refer to the Accessories Selection Guide for Impedance Measurements (part number 5965-4792E) for the measurement accuracy and measurement methods.

  • Page 26: Ordering Information

    Ordering information Agilent 4284A 20 Hz to 1 MHz precision LCR meter Note: No test fixture is supplied with the Agilent 4284A. Furnished accessory: power cable. Options: Option 4284A-700: Standard power (2 V, 20 mA, 2 V DC bias) Option 4284A-001:...
  • Page 27 Agilent 42842C bias test fixture, 1 ea. Option 42842C-001 adds SMD test fixture Agilent 16048A test fixture, 1 ea. 0-20 Amps dc bias configuration (Agilent 4284A only) Agilent 4284A with Option 4284A-002, 1 ea. Agilent 42841A bias current source, 1 ea.
  • Page 28 Agilent Technologies’ Test and Measurement Support, Services, and Assistance Agilent Technologies aims to maximize the value you receive, while minimizing your risk and problems. We strive to ensure that you get the test and meas- urement capabilities you paid for and obtain the support you need. Our extensive support resources and services can help you choose the right Agilent products for your applications and apply them successfully.

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4285a

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